TG EAMCET 29 Apr 2025 Shift 1 Paper

Study the following and identify the correct statements:
I. The alleles IA and IB regarding blood groups are dominant over IO, and IA and IB are co - dominant
II. In some fishes, reptiles and birds, females are heterogametic (ZW) and males are homogametic (ZZ).
III. Genic balance theory states that Y- chromosome is essential for determination of sex in male Drosophila
IV. Person with O blood group are called universal donors because their RBC contain both antigens A and B.